Machine-attached rivet and burr



N v-25, 1930- P. E. FENTON 3 mcnnm ATTACHED RIYVET m aurm Filed Aug. 13. 1929 35 burr.

. Patented} Nov. 25, 1930 W e ma-r ma Penn E. sermon, on rrrotmsron, connections, ASSIGNOR- T scovrrit Munnrnorung ING'COMPANY, or warnannnv, connnc'rronr, A conronarron or oonnnc'rronr MACHINE-ATTACHED nrvnr Ann was Application filed August 13, 19539. Serial No. 385,6e9.

There is a preference in the garment'trade for special fastenings of the rivet and burr type which are truly handset or applied in a good simulation of hand setting. This preference is not without merit, in that such setting begets in the consumer a confidence of excellence of workmanshipand the correspondingly gratifying prospect of durability and long wear.

These rivet and burr fasteners are applied at a number of points ofstress and strain in garments and are more or less conspicuous.

In riveting cloth garments it occurs frequently that the fibres or threads of he cloth are dislodged or loosened and carried bythe leading end of the driven rivet through the hole in the burr or washer and exposed on the outside, thereby giving an unsightly appearance' which detracts from thesaleability of the arment by offending the fancy of the buyer. r I

The present invention consists of a machine-attached rivet and burr, which in being attached closely simulates hand setting and which will not disturb the fibres or threads of the fabric, as I will proceed now more particularly to explain and finally claim.

In theaccompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a bottom plan view and Fig. vertical cross section of the burr. Fig. 3 is an elevation of a form of rivet or tack that may be and preferably is used in connection with the Fig. t shows the burr incross section and the tack in elevation on opposite sides of plies of fabric. Fig. 5 is a view similar to Fig. l, in which the tack is driven through the plies of fabric and is ready to enter the burr. Fig. 6 is a section showing the burr and tack set upon plies of fabric.

All of the views show the parts enlarge-cl. Instead of a burr made as a flat annulus, likejan ordinary. washer, I use a structure having a flat'laterally extending flange 1, fromthe center of which is drawn a cylindrical barrel 2 having a closed and inwardly or upwardly depressed end 3, having the relatively'inclined rim 4:. Instead of a blun pointed rivet I prefer to use a sharppointecl tack, Fig. 3 having the flat head 5 and pointed shank 6 i The burr and tack may be of suitable metal, such that when they are arran ed upon or machine-fed to opposite sides of united, the tack will pierce the parts and also pierce the closed end of the burr and pass up into the barrel of the burr, and then upon force being applied the barrel ofthe burr will I enter the fabricwit-hout fraying or loosening 1ts threads or fibres and sink into the parts to be fabric and beheld by clinching the shank of the tack, as illustrated in Fig. 6. In other words, the burr and tack function in a self-p1ercmg manner, without drawing the threads or fibres of the material to which they are applied up through the hole in the burrs made by the tack. When the burr and tack are assembled in a setting machine, the pointof the tack registers with the depressed closed end of the barrel of the burr and pierces through the metal a hole always the exact size of the shank of the tack 0r rivet,

so that there is no room for the threads of the material to be drawn up through the hole; and when the burr and tack are assembled or set, the finish is entirely'free from protrud-. ing threads or fibres, and closely approaches hand-riveting.

Variations in details of construction are permissible within the principle of the invention and the claims following.

What I claim is V 1. Aburr provided with a flange and a barrel extending-from said flange and having a closed and inwardly depressed end, and a rivet or tack having a pointed shankadapted to be driven through the closed end of the barrel and clinched therein, the clinching of the rivet or tack making a hole in the burr no larger than its shank and thereby preventing the drawing through and exposing of the v a my hand this 12th day of August, A. D. 1929.

PAUL E. FENTON. 

